The correct option is C NATO
NATO (National Atlantic Treaty Organization) is a military alliance of 28 countries bordering the North Atlantic Ocean (including countries from Europe and America). It includes the United States, most European Union members, Canada, and Turkey. NATO is an acronym for the North Atlantic Treaty Organization. The United States contributes three-fourths of NATO's budget. It was set up in 1949 and claims to aim at building peace throughout the world especially controlling the aggressiveness arising out of the communist's block.